OK, go to MyMopar (if you have not) and download the closest factory shop manual for the car, then hit the "wiring" button there and get the aftermarket diagrams, which are 'sometimes' easier to follow
Next look up the TS column switch connector so you can identify wire colors. Here is what goes in and out of the switch
IN:
1...Main flasher power, which is hot only with key in "run."
2...Hazard flasher power, hot at all times
3....Brake light switch output, hot with brake depressed
OUT:
Left rear turn/ stop
Right rear turn/ stop
Left front turn
Right front turn
Look up the colors to match those, I don't bother to memorize them. Probe the switch connector and or access the left kick panel connector for the rear harness.
Switch centered, both rear turn should show power with brake depressed
switch left or right should kill brake power to the appropriate rear lamp
With key "on" try both turn, re-check turn flasher power. If you have power out of the flasher / into the TS switch, and no flashers, it's either the switch or bulbs
Next pull ALL the bulbs, inspect, clean etc. Re-install all but one, and with that turn engaged, probe the socket to see if you have flasher power